Almost one year after ExxonMobil’s pipeline burst and caused a major oil spill near Mayflower, Arkansas, officials say the area is safe to live in. But locals are still suffering from dizziness, headaches, and nausea — prompting many to move away.

On March 29, 2013, Exxon’s Pegasus pipeline spilled thousands of barrels of Canadian crude oil in a suburban area near the town of Mayflower, sparking strong opposition to oil sands exploitation and the Keystone XL project. If approved, the Keystone pipeline would carry tar sand oil from Alberta, Canada through the US to Texas refineries.